body {
    background: #f2f2f2;
    min-width: 1300px;
    position: relative;
}
*{
    box-sizing: border-box;
}

/* 通用 */

section a:hover {
    color: #ff8600;
    text-decoration: underline;
}


/* header */

header {
    height: 50px;
    background: #fafafa;
    border-bottom: 1px solid #e5e5e5;
}

header div.header_nav_left {
    /* border: 1px solid black; */
    height: 50px;
    line-height: 50px;
    margin-left: 130px;
    float: left;
}

header div.header_nav_left span {
    color: black;
    font-size: 18px;
}

header div.header_nav_left a {
    text-decoration: none;
    color: #999999;
    font-size: 14px;
}

header .header_nav_con {
    /* border: 1px solid red; */
    height: 50px;
    margin-left: 535px;
    float: left;
}

header .header_nav_con ul {
    list-style: none;
}

header .header_nav_con ul li {
    float: left;
    margin-right: 50px;
}

header .header_nav_con ul li a {
    height: 48px;
    color: #7f7f7f;
    font-size: 16px;
    text-decoration: none;
    line-height: 48px;
    display: inline-block;
}

header .header_nav_con ul li:nth-of-type(3) a {
    border-bottom: 2px solid #ff8600;
    color: #ff8600;
}

header .header_nav_right {
    width: 60px;
    float: right;
    margin-right: 130px;
}

header .header_nav_right a {
    text-decoration: none;
    font-size: 14px;
    color: #7f7f7f;
    line-height: 50px;
    height: 50px;
    display: inline-block;
}

header .header_nav_right a:hover {
    text-decoration: underline;
    color: #ff8600;
}


/* section版心区域 */


/* 版心左侧 */

section {
    width: 1090px;
    margin: auto;
    padding-top: 40px;
    overflow: hidden;
    margin-bottom: 70px;
    padding-left: 5px;
    padding-right: 5px;
    
}
section .section_top{
    width: 100%;
    height: 480px;
    background:url("../img/xzj_jieshao-1.jpg")no-repeat;
    background-size: 100% 100%;
    padding-top: 248px;
    

}
section .section_top>a,section .section_foot>a{
    text-decoration: none;
    display: block;
    margin: 0 auto;
    width: 180px;
    height: 48px;
    background: #FFE300;
    font-size: 18px;
    text-align: center;
    line-height: 48px;
    border-radius: 3px;
    color: black;
}

section .section_top>a:hover,section .section_foot>a:hover{
    background: rgb(255, 208, 0);
}
section .section_top>p,section .section_top>p>a{
    color: white;
    font-size: 14px;
    text-decoration: none;
    text-align: center;
    margin-top: 25px;
}
section .section_top>p>a:hover{
    text-decoration: underline;
}
section .section_sec1{
    padding: 50px 0;
    border-bottom: 1px solid #f9f9f9;
    background: white;
}

section .section_sec1>p{
    text-align: center;
    margin: auto;
    margin-bottom: 60px;

}
section .section_sec1>p>strong{
    font-size: 30px;
    
}
section .section_sec1:nth-of-type(2) div{
    height: 250px;
    margin-top: 40px;
}
section .section_sec1:nth-of-type(3) div{
    height: 280px;
    margin-top: 40px;
    margin-bottom: 40px;
}
section .section_sec1:nth-of-type(4) div{
    height: 195px;
    margin-top: 40px;
    margin-bottom: 40px;
}
section .section_sec1:nth-of-type(4) div>img{
    display: block;
    margin: auto;
}
section .section_sec1>div ul{
    list-style: none;
}
section .section_sec1>div ul li{
    width: 25%;
    float: left;

}
section .section_sec1>div ul li>i{
    display: block;
    width: 90px;
    height: 90px;
    margin: 20px auto;
}
section .section_sec1>div ul li:nth-of-type(1) i{
    background: url(../img/xzj_jieshao-1.png)no-repeat;
}
section .section_sec1>div ul li:nth-of-type(2) i{
    background: url(../img/xzj_-jieshao-2.png)no-repeat;
}
section .section_sec1>div ul li:nth-of-type(3) i{
    background: url(../img/xzj_c-jieshao-3.png)no-repeat;
}
section .section_sec1>div ul li:nth-of-type(4) i{
    background: url(../img/xzj_ic-jieshao-4.png)no-repeat;
}
section .section_sec1>div ul li p{
    font-size: 18px;
    text-align: center;
    margin-bottom: 10px;
}
section .section_sec1>div ul li span{
    text-align: center;
    color: #666;
    font-size: 12px;
    display: block;
}
section .section_sec1:nth-of-type(3)>div>img{
    display: block;
    margin: auto;
    height: 280px;
}
section .section_sec1>div>div{
    width: 998px;
    height: 210px;
    margin: auto;
    margin-bottom: 40px;
}
section .section_sec1>div>div>div{
    width: 306px;
    background: #f9f9f9;
    float: left;
    height: 210px;
    margin-right: 40px;
}
section .section_sec1>div>div>div:nth-of-type(3){
    margin-right: 0;
}
section .section_sec1 .Price>div>div{
    padding: 20px;
}
section .section_sec1 .Price>div>div span{
    font-size: 20px;
    line-height: 30px;
}
section .section_sec1 .Price>div>div>span strong{
    color: #ff8600;
}
section .section_sec1 .Price>div>div>p{
    font-size: 14px;
    color: #666;
    margin-top: 45px;
}
section .section_sec1 .Price>div>div>.pr1{
    color: #ff8600;
    font-size: 14px;
}
section .section_foot{
    background: #f9f9f9;
    height: 230px;
    width: 100%;
    padding-top: 60px;
    padding-bottom: 40px;
    box-shadow: 0 2px 2px rgb(230, 230, 230);
}
section .section_foot img{
    width: 535px;
    display: block;
    margin: auto;
    margin-top: 40px;
}


/* 回滚按钮 */
div.rollback{
    width: 50px;
    height: 50px;
    background:#dddddd;
    background-image: url("../img/xzj_chuans.png");
    background-repeat: no-repeat;
    background-position: 50% 50%;
    position: fixed;
    
    right: 30px;
    border-radius: 5px;
    bottom: 30px;
    cursor: pointer;
    display: none;
    z-index: 1;
}
div.rollback:hover{
    background:#dddddd;
    background-image: url("../img/xzj_chuans1.png");
    background-repeat: no-repeat;
    background-position: 50% 50%;
}
